The Democratic Republic of the Congo, also known as DR Congo, DRC, Congo, Congo-Kinshasa, DROC, or RDC (known as Zaïre 1965-97), is a country located in Central Africa. It borders the Republic of the Congo, the Central African Republic, and South Sudan to the north, Uganda, Rwanda, Burundi and Tanzania to the East, Zambia and Angola to the south and the Atlantic Ocean to the west. It is the second largest country in Africa by area and the eleventh largest in the world. With a population of over 75 million, the Democratic Republic of the Congo is the most populous officially Francophone country, the fourth most populous nation in Africa and the nineteenth most populous country in the world.